Diesel Data: Automotive Repair

Diagnosis Procedure





THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF


Diagnosis Procedure

1.CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Consult-III Function.
Is oil pressure warning lamp illuminated?
YES - GO TO 2.
NO - GO TO 5.
2.CHECK IPDM E/R OUTPUT VOLTAGE
1. Disconnect the oil pressure switch connector.
2. Turn ignition switch ON.
3. Check voltage between the oil pressure switch harness connector terminal 1 and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 4.
3.CHECK OIL PRESSURE SWITCH UNIT
Perform a unit check for the oil pressure switch. Component Inspection.
Is the inspection result normal?
YES - Replace IPDM E/R. Removal and Installation.
NO - Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Diagnosis Procedure.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair harness or connector.
5.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
Connect CONSULT-III and perform an input signal check for the unified meter and A/C amp. Description Component Function Check Diagnosis Procedure Component Inspection, "Component Function Check".
Is the inspection result normal?
YES - Replace combination meter.
NO - Replace BCM. Removal and Installation.